Music-leaf turner.



, E. HOINBS. MUSIC LEAF TURNER. APPLICATION TILED MAR. 20, 1912. 1,960,682. Patented May 6, 1913.

3 3HBETSSHEET X.

lfilncxe; V l'm'onlor MM 5. flaw H. E. HOINBS. I MUSIC LEAF TURNER. APPLICATION rum) 1\ [AR.20. 1912 Patented May 6, 1913.

3 SHEETS-SHEET 2 iii M5565 'fwh H. B. riUlNES. MUSIC LEAF TURNER. APPLICATION FILED MAR. 20, 1912.

1 369,682. Patented May6,1913.. a sums-sums.

L HALVOR E. nomnsfor mm'spgmsnm m mus c- EA: rpnnnn.

iL GOQosg;

n; all whomz't may concern:

- Be=it known that I, I-IALvon' E. Homes; 1 a-subjeot of the King ofNorway, residing "at hl-inneapolis, in the con'nt-y'of Hen'ne'p'i'n End State of .Minnesota, have 'i nvented oer tamlnew and useful Improvements in- Musie-Leafl'lurnerS; and I do hereby do;

i 'cla-re'the following to be a full, clear, and

* P music leaf turner attached in work1ng.'pos 1- tion to-an upright piano; Fig. 2 is.. a view minfroht elevation showin the mus c racke turning inecha-i and-a portion of the lea nism; Fig. is a detail view V an enlarge d h i fiscal'q in longitudinal section, taken ont'he" '-""linew 'w of Fig. 1; Fig. 4 is a bottom plan,

feo view of'the partsl hown in 3';-.1Fig. 5

view" in vertical section, on an enlarged scale, taken on the line 9: at of Fig. 1; Big.

"ti've showing a portion of the releasing and Tire-settingmechanism; Fig. 9 is a view 'in vertical section taken on the line. :12 m '9' Fig. 6-; Fig. 10 is a.t-ransverse section, taken ""oiiftfhe line 12: w of Fig. 11;.Ei 11 is a (longitudinal section taken on the line a as of "Fig: 110; and Fig. 12 is aview partly in en d 151mm and partly in transverses e'ction','takn on the line as" w? of Fig.3. .f'llie; numeral.laindicatespas anentirety, lan'uprig ht piano illustrated simply for'the purpose of showing theimproved music leaf, 1 turner 'applied'in working position. LDek.

5Qtaoliablymonnted'on thepiano l is a fold-Jv ing, and adjustable music'HrackQ; said itack oorrqi'ri'ses ii metallic marginal -frame 3', haw,

' ingfnint-ermediate' vertically. extended'tie member The horizontal members oi." theframe 3 are transversely divided adjacent to the lefthand edge of the member 4. and

\ Speoifitnition'ht];otters Patent. r; I Application filed March-20, 1912. Serial no. 6 8 5,0 38

'3 is n' detail viewshowing oneof thejspring' closed-leaf holding grapple jaws; Fig.6 a

' fu f t M y 6- 9 3- are .connected by. means of a pair of vertically: a'lined hinges 5,.which permit the rack 2' to be folded like a book. The vertical members-oi the, reel: 2 ,are-alsd transversely 50 divided and the lowerLseot-ions.thereof are provided: with g uide'flanges 6 in which the upper members thereof are slidably mountit under friction. .Both sections-"of the lower member -0f the frame 3 are provided 5 with anout-turned leaf, supporting ledge 7-. Cover holding spring fingers 8 are 50- eured, one' to each. of theiupperfcorners of the rack 2..' a 1 A rectangular Inetalliebox 9 .is rigidly secured "to an extension 10,.projecting from p'rovi edjwith anfiopen bottoml' Carried by the'' box 9, isa multiplicity. of, leaf turniing arms 11, terminating-at theirout er ends, ,in spring closed leafholdinggrapple "aws :12 'and'termina'tingat: their'inneren s in coiled springs 'l3.- As ushown-,.,tliere are four of these'leaf'turning. arms 11; but, of courseganyidesired :nunnberv may be provided. Thds'prings 13 are .concentrically located, one--withinilthe-other,.jas shown in :Fig. 4; and, as tin-entirely, are mounted within the bolt 9.- :Atc their: gfree .cnds, the springs {13 are" rigidl-y'secured with, respect "to the box {9," and-the leafturning arms 11 Iare arranged to 'work jnst'below the box 9, one "slightly ahove the other." .A segmental 'gi lide-bar' 14 -is rigidly secured to.. the bottomof tl1e"bo;r D, and over which bar. the leaf turning arms 'll'slide during their leaf 't'nrningfoper'ations."

Esca einen't spri-ngs 1:5" independently hold the lea "turning-arms 11 against the tension of their l springs 113. -Theseescapement l springsffloar'e anchored, at their, interii'iediate portions, tothe'bort) tit-'16, with their upperehds engaging thebox 9:515 a base of resistance. 'Thefr'ee or-lower ends of the esca'pement springs 15iterminate'in depending retaining fingers 17 havingdirect engagement, one withj each of the leaf turning arms 11. j

- Loosely ,resti rigjon-the floor; close to the pianol, is a casing 18-in whichis mounted .the escapenient releasing' mechanism and, also, the. resetting mohonismyall of which is' arranged; to'he operated by the foot of the pianist; FeetFl'Q of rubber or other suitable material, are-secured'to the bottom of the casing 18 to frictionally hold the same th'e -u(pper member ofgthe. frame 3 and is against slippage. Vertically movable re- :--.duit"23;pre ferably as sho'wnin Fig.'10' and proj cts-into the box 9, and the lower I Ajfooto erated tubular releasing'jplunger .25. is slida ly mounted-in a'vertically ex:

The upper end of the dplunger 25 rejects 45"ed at its vertioal'edges in a pair of vertiabove the slug 811 provided with leasing plates 20, four in number, as. shown,

-. are shdably mounted, at theirvertical edges in vertically extended channels 21 formed in the'si'des of the casing 18. Flexible wire '5 cables 22,;oonn'ect' the plates with the retainiaigfinger 17, ofesoa ment springs 15.-

" Each'cable 22,ismoi1nt a. flexible con- ,Fig.'11;eonstructed froma'coiled wlre. All fg; are mounted in a flexible i per end of whichis secured 'theteo f is to and projects into .the Teasing 18.

tended seat 18" formed in the casing 18.

I'above the-casing 18, an is provide with a Twp 26 that engages the top of the casing 18 'to liuiit'jthe downward movement thereof.

: Compressed between the bottom of the cas- 18 and the-lower end of the plunger 25, is' azcoiled'spriiig27, yieldingly and nor- 5 many holding 'said plu er in its extended f or operative position. ivotall mounted at itsupper end 'lwithin the tubu ar plunger 25, is 21- depending lever 28 terminating at "its lowe'rl end in a laterally proj in'garm casing--18, and arranged towork over the tops of the releasing plates 20. Integrally formed on the-under side 'of the arm 29, nearits free end, isa'depending sto fin er 5'30'a to successively. engage t esides of the 'r'eeasing plates 20. a

A leaf spring 31 is=secured to the plunger and arranged to engage the lever 28 and yg'fldipgly .hold the stop nger in engagement Ewith the releasing plates 20, nearest the plun er25. 3 Underlying the lower. horizontal ges of the releasing plates 20, is a vertically .-movable re-set-ting. late .32 hav- .ing an upturned portion 33 slidably mount .cally'extended grooves 34, formed in' the casing 18, and that extend parallel with the grooves 21. The re-sett-ing plate 32 is yieldnigly pressed upward by means of a spring :35'anchored within/the casing 18. Horizontall mounted for slidin movement in theoaslng 18 is aspring late 36, terminating at one end in anu turned cam nose 37 that normall overlies t ere-settin plate 32 5 5 and normal y holds the same ownward against the tension of the spring 35. The other end of the springlatch 37 is anchored 39 to the casing 18. 7 ,Mounted in a vertically extended seat itl,

,formod in the casin 18 for'vertioal movement, is a tubu ar re-settin plungerfl; arranged with its u per en projecting if adapted to engage the uppersurfaciqs ea casing 18 to limit the downward move t 5 ,29 that projects through aslot 5 -1nthe {merit of-the lates 20, the springs 45 are ment thereof. Within the plunger mounted a coiledspring 43 iaving one its ends anchored to the lunger 41 andj itsjf other end projectin through a slot 40 out in the S de of the p unger 40, and anchored to the casing 18. The intermediate rtio'nof'the spring latch bar 36 extends t rough in the vertical wall of the casing 18 and is Q pivoted-to the plunger 41. The intermediate portion of the wire 44 engages a cam shoulder .18 formed by the slot 18". The releasing plates 20 are independently andyieldingly held in inoperative positions against the tension of the escapement springs by means of flat leaf springs '45, secured to the'casing 18; The springs 45 are arranged to engage stop shoulders 20"on the releasing plates 20. 9

, The operation of the improved music leaf turner may be briefly stated as follows: Normally, the leaf turning arms 11 are held to the right with respect to Fig. 1, against the tension of the sprin s 13 by the escape- 5 I ment springs 15. Eac leaf turning arm is secured to one of the leaves of awbook y,

bymeans of the-spring closed apple jaws 12.' The cables 22 are of such ength as to hold the, plates 20 in their uppermost posi- 10 t-ions against the tension of t e escapement springs 15. To turn one. ofthe leaves of the 'booky, the plunger 25 is pressed downward by the foot against the tension of the I spring 27. During this movement-of the 05 plunger 25, the arm .29 moves down one of the plates 20. As soon as the foot is removed from the plunger 25, the same is -im mediately returned to its normal position by the spring 27, and the arm 29 is moved 1 0 outward by-means of the spring; 31 until stopped by the finger 30 engaging the next plate 20. The plates 20,.as they are moved downward, are yieldingly held in .this-position by means ofthe springs-45. -The im- .1157

proved device is now again in a position to turn the next leaf of the book y. To return the plates 20 to their normal positions, the plunger 41 is pressed downward bythe foot, thereby operating the latch 3 6,and releasing he 'the re-setting plate 32. As soon as the resetting late 32 is :released, the sprin 35 moves -t e same upward and carries t erewith any or allot the plates 20 which may I 'hav'e'been moved downward during the leaf 1 5 turning During the return movemoved .out o en gement with thestop shoulders '20; At e same time the plunger 11, is .moved downward, the connected wire same have been relea 'ments, a casing located at a distant point 'said rack, an escapement coiiperating with each ofsaid l'eaf turning devices, means for actuating said leaf turnin devices after the by said escapefrom said music rack, releasing devices, movably mounted in said casing, flexible connections betweensaid escapements and releasing devices, and common means operative successively on said releasing devices, to actuate said escapements, substantially as described.

2. In a device of the kind described, the combination with a music rack, of a pluralityofleaf turning devices, carried by said rack, an escapement cooperating wit each of said leaf turnin devices, means for actuating said leaf' turnin devices after the same have been release by said escapements, a casing located at a dist-ant point from said music rack, releasing devices, movably mounted in said casing, flexible connections between said escapements and releasing devices, common means operative successively on said releasing devices, to actuate said escapements, and means for bolding said releasing devices in inoperative positlons, sub'stantxall as described.

3. In a device 0 the kind .described, the combination with a music rack, of a plurality of leaf turning devices carried by said rack, an escapement coiiperating wit each of said leaf turning devices, means for actuating said leaf turning devices after the same have been released by said escapc ments, a casing located ata distant point from said music rack, releasing devices, movably mounted in said casing, flexible connections between said escapements and releasing devices, common means operative successively on said releasing devices, to actuate said escapements, means for holding said releasing t-ions, and means for returnin' said releasing'devices to operative positions, substantially as described. A

4. In a dey-icc of the kind described, the combination flit-l1 a music rack, of a plurality of leafturning devices carried by said rack, an escapement cooperating with each of said leaf turning devices, means 'for'aetuating said leaf turning devices, after. the same have been released by said escapements, a casing, releasin plates, movably mounted in saidcasing, exible connections between said esitbpeinents and releasing devices in inoperative posiplates, and a yieldingly held plunger, operative successively on said releasing plates, to actuate said escapements, substantially as described. I

".5. In a device of the kind described, the combination with. a music rack, of a plurality of leaf turning devices carried by said rack, an escapement coiiperating wit each of said leaf turning devices, means for actuating said leaf turnin devices, after the same have been release by said escapements, a casing, releasing plates, movably mounted in said casing, flexible connections between said escapements and releasing plates, a yieldingly held plunger, operative successively on said releasing plates,to.actu'- ate said escapements, and ayieldingly held plunger for retprning said releasing plates to operative positions, substantially as described.

6. In a device of the kind described, the combination with turning device carried by said rack, an ewapement coiiperat'ing with said leaf turning' device, ,means for actuating said leaf turning device afterth'e same has been released by the escapement, a casing, a releasing late movably mounted in said casing, a 'flexi 1e connection between said escapement 'and said releasing plate, a releasing plungerv mounted in said casing, a movable part carried by said releasing plunger, and operative on said.releasing plate for actuating said'escapemeut, and means for rendering said movable artinoperative and for re setting said re easing plate.

7. In a device of the kind described, the combination with a music rack, of a spring operated leaf turning arm carried by said rack, an escapement coiiperating with said leaf turning arm, a casing, a releasing plate mounted in said casing, a connection between said escapement and said releasing plate, a releasing plunger mounted in said casing, a yielding partcarried by' said releasing plunger and ,perative on said releasing plate to actuate said escayxnnent,

means for yieldingly holding said releasa music rack, of a leaf ing plate in an inoperative position, and

combination with a music rack, of a spring operated leaf turning rack, an escapement coiiperating with said leaf turning arm, a casing, mounted in said casing, a connection between said' escapement and said releasing plate, a releasing plunger mounted in said casing, a yielding. part carried, by said releasing plunger and. operative on said releasing plate to actuate said escapement, means for yieldingly holding said releasing "plate in an inoperative position, and means for simultaneously moving said movable arm carried by said 8. In a device of the kind described, the;

12o a releasing plate part into an inoperative position and for returning said releasing plate to an operative p0siti0n.. p

\ 9.;In a device of the kind described, the combination with. a music rack, of a spring voperated leaf turning arm carried by said rack; an escape'ment cooperating with said leaf turning arm, a releasing plate mounted H1 sald caslng, a connection between said 10 =esoapement and-said releasing plate, a releasing plunger and a re-setting plunger mounted in said casing, a yielding part car ried by said releasing plunger and operative on said releasing plate to actuate said es-' capelnent, means fonyieldingly holding said 5' releasing plate in an inoperative position, and means operated by said re-setting plunger for simultaneously moving said yielding part into an inoperative position and for returning said releasing plate to an oper- 2e ativeposltion.

In testimony vthreof'l aflix' my signature in presence of two Witnesses; i

- HALVOR E. norms.

Witnesses: A

Enrrrr SIMERMAN, HARRY D. KILGORE. 

